Which is a square matrix?
[ 2 3 -8 1 -5 19 0 -3 5.6 7.8 6 78]
[ 2 3 -8 0 -5 19 0 0 5 8 6 0]. [1 3 -9 8 2 2 0 5 16 1 -3 11] [3 1 9 8 2 2 0 5 16 1 3 11]

Plz, ! the box plot below shows the total amount of time, in minutes, the students of a class surf the internet every day: a box plot is shown.part a: list two pieces of information that are provided by the graph and one piece of information that is not provided by the graph. (4 points) part b: calculate the interquartile range of the data, and explain in a sentence or two what it represents. (4 points) part c: explain what affect, if any, there will be if an outlier is present. (2 points)

X+y=-4 x-y=2 use elimination with adding and subtraction

12 3 4 5 6 7 8 9 10time remaining01: 24: 54which graph represents this system? y=1/2x + 3 y= 3/2x -1